Upset Audit

WTA Tour Singapore 2026: the biggest upsets

The most surprising results of WTA Tour Singapore 2026 in Singapore, ranked by the Umpiry Surprise Score— 100 minus the winner's frozen pre-match win probability. The higher the score, the bigger the shock. Tap any result for the full match.

1

Fernandez L.def.Andreeva M.

WTA Tour Singapore 2026 — Quarterfinal6-2 7-5

Pre-match WP: Fernandez L. 17% · Andreeva M. 83%

83

Umpiry
Surprise Score

2

Gibson T.def.Morvayova V.

WTA Tour Singapore 2026 — Round of 167-6(2) 7-6(1)

Pre-match WP: Gibson T. 23% · Morvayova V. 77%

77

Umpiry
Surprise Score

3

Prozorova T.def.Eala A.

WTA Tour Singapore 2026 — Round of 164-6 7-5 6-3

Pre-match WP: Prozorova T. 24% · Eala A. 76%

76

Umpiry
Surprise Score

The Umpiry Surprise Score uses a calibrated win probability frozen at match start, never recomputed in hindsight. Only genuine shocks are listed — main-draw results where the winner was a clear underdog (Surprise Score 70+, i.e. a pre-match win probability of 30% or below). It is statistical information, not a betting recommendation.